11653621116 has 24 divisors (see below), whose sum is σ = 28129431120. Its totient is φ = 3750590592.

The previous prime is 11653621103. The next prime is 11653621181. The reversal of 11653621116 is 61112635611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16743361 + ... + 16744056.

It is an arithmetic number, because the mean of its divisors is an integer number (1172059630).

Almost surely, 2^11653621116 is an apocalyptic number.

It is an amenable number.

11653621116 is an abundant number, since it is smaller than the sum of its proper divisors (16475810004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11653621116 is a wasteful number, since it uses less digits than its factorization.

11653621116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33487453 (or 33487451 counting only the distinct ones).

The product of its digits is 6480, while the sum is 33.

The spelling of 11653621116 in words is "eleven billion, six hundred fifty-three million, six hundred twenty-one thousand, one hundred sixteen".